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      Knowledge is Power

      Scientific American May 19, 1917

      What a Soldier Eats

      Comparative value of the food rations of different soldiers of different nations.

      • May 19, 1917

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      More in the May 19, 1917 issue of Scientific American
      • Motor Traction in Modern War
      • A Huge Mass of Jade
      • Coal Tar Dyestuffs in Great Britain
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